body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(200deg, #cbdcf5, #fce7ef);
}

.email-box {
    background-color: rgb(255, 255, 255);
    width: 450px;
    height: 115px;
    border-radius: 5px;
    box-shadow: 5px 5px 5px rgba(0, 0, 0, 0, 1);
    position: relative;
    display: flex;
    flex-direction: column;
}

input {
    background-color: rgb(255, 255, 255);
    width: 100%;
    color: #fff;
    border: none;
    /* 下边框样式 */
    border-bottom: 1px solid rgba(255, 255, 255, 0, 4);
    padding: 10px 0;
    text-indent: 10px;
    margin: 13px 0;
    font-size: 14px;
    letter-spacing: 2px;
    text-align: center;
}

input::placeholder {
    color: rgb(158, 158, 158);
}

input:focus {
    color: #6262ad;
    outline: none;
    border-bottom: 1px solid #a262ad80;
    transition: 0.5s;
}

input:focus::placeholder {
    opacity: 0;
}

button {
    width: 70%;
    margin-top: 12px;
    margin-bottom: 12px;
    background-color: #f6f6f6;
    outline: none;
    border-radius: 8px;
    padding: 13px;
    color: #6262ad;
    letter-spacing: 2px;
    border: none;
    cursor: pointer;
    margin: 0 auto;
}

#check {
    border-bottom: 1px solid #bcb7d8;
}